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Acetylene gas (C2H2) is produced by adding water to calcium carbide (CaC2).
CaC2(s) + 2 H2O(l) → C2H2(g) + 2 Ca(OH)2(aq)
Determine how many grams of CaC2 are needed to react completely with 1.92 g of H2O.
What is the rate constant of a first-order reaction that takes 215 for the reactant concentration to drop to half of its initial value?
If you built a standard galvanic cell using the following half-reactions, what is the maximum work that could be done by this standard cell? (deltaG=wmax)
How is the equilibrium yield of C6H12O6 affected by each of the following? 6 CO2(g) + 6 H2O(l) + HEAT C6H12O6(s) + 6 O2(g) (a) increasing PCO2 increases decreases no effect
in a 125-ml erlenmeyer flask containing a magnetic stirring bar mix 0.05 mol of benzaldehyde with the theoretical
Of the seven categories of matter (metallic network, non-metallic network, ionic-covalent network, ionic network, polar molecular, weakly polar molecular, and non-polar molecular), which are the most similar. Why
For the gas phase decomposition of t-butyl alcohol, (CH3)3COH (CH3)2C=CH2 + H2O the rate constant at 811 K is 1.05E-3 /s and the rate constant at 846 K is 5.64E-3 /s. The activation energy for the gas phase decomposition of t-butyl alcohol is
what volume of 0.684 m mno4- solution is required to react completely with 27.50 ml 0f 0.250 m fe? this is an
Propose mechanisms for the formation of fragments with m/z 69, 43 and 41 in the mass spectra of CH3CH=CHC(O)CH3 and briefly explain the absence of fragments from the McLafferty rearrangement.
What is the final concentration of Na+ after adding 230 ml of water to a stock solution of 2.5M 420.0 ml Trisodium phosphate?
a) For a weak acid or base the degree of ionization increases with dilution. Explain. b) consider the solutions .01 M HNO3 / .10 M HCL / .01 MHNO2. which solution has the highest ph
one hundred grams of water is saturated with NH4Cl at 50 degrees celcius. According to table G if the temperature is lowered to 10 degrees celcuis what is the total amount of NH4Cl that will precipitate.
The absorbance of a blank solution prepared in the same manner was 0.025. The molar absorptivity of the copper complex is 7.90 x 103 L.mol?1.cm?1. Calculate the weight percent copper in the rock sample
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